Ji Ran frowned, dispelling the idea of learning from Feng Yishu.

- Although this man is indeed skilled and upright, he is a rich kid after all, and his demeanor is so frivolous...... It's not worth learning.

Xiao Qi pushed Ji Ran and continued to move forward.

The two of them passed through a low door, and then exclaimed at the same time—a huge dragon fossil in front of them, overlooking the entrance from above.

Xiao Qi stopped, looking up at the dragon with only the skeleton left, its wing bones retracted backwards, maintaining a swooping position, and its long tail vertebrae were thrown behind him in a straight line, showing its sharp teeth to the visitor.

"This is the Gozu Bird," the old man said with a smile, "and the route we took was not very particular, and it was supposed that this should have been the starting point of our travels. ”

“…… Why? ”

"Because time here is the farthest away from us." The old man looked at the keel, "This Gozu bird is 72 million years old, and in this area, it can be regarded as a young man." ”

72 million ...... Year.

Xiao Qi held his breath.

She suddenly remembered the 3,700-year-old pseudo-luan that Sister had killed earlier, and when that demon beast was born, it was already in an ancient era that could not be recorded in the official history.

That's a thousand years......

However, compared to the ancient remains displayed here, three thousand years is nothing?

If that's still young, then the other paleontology here......

Xiao Qi involuntarily put away his smile and looked at the bones lined up on all sides with a bit of awe.

She pushed Ji Ran and passed by this continent thousands of years ago without saying a word.

Looking at everything around her, a slight sadness suddenly rose in her heart.

There is death in life, and it is easy to cultivate shortening.

This short period of decades is like a night of lights, and the end is over...... How to make people not mourn the need for life.

"Huh?" Ji Ran's eyes were suddenly attracted by a pair of snail-shaped fossils nearby, "Is that a nautilus?" ”

Xiao Qi followed his gaze and saw that the surface of the pair of spiral-shaped fossils had been polished to a very smooth finish, and the lines on it showed an arc of conformal spirals.

Xiao Qi didn't recognize these, and everything here didn't have labels and instructions, she walked to Ji Ran's side and leaned over to carefully look at the things in front of her.

“…… Right? Xiao Qi replied uncertainly.

Ji Ran looked at Xiao Qi's side face, time seemed to freeze, and the moment that was about to pass between breaths became as long as a lifetime.

He saw a strand of hair slowly falling out of Xiao Qi's ear, hanging down next to her cheek.

She frowned, lost in thought, her eyes only half-open under her long eyelashes, the distant firelight casting an orange halo over her silhouette.

In this silent and empty underground palace, the two were not far apart, Ji Ran looked at Xiao Qi's silhouette, and suddenly felt a premonition of "she was going to look at herself" from the bottom of his heart, he immediately looked away and looked at the snail fossil in front of him again.

The next moment, Xiao Qi really looked sideways, but her gaze crossed Ji Ran and looked at the old man not far behind him.

"Uncle! Can you come over a bit, this thing - is it a nautilus? ”

The old man took a closer look, "No. ”

"Although it is a bit similar to the nautilus, this is an ammonite, in terms of kinship, it is closer to the octopus, it lives in the upper layer of the sea when it is alive, and it sinks when it dies - this pair of ammonites was excavated from an evaporated sea, and when they were dug up, they were a pair."

"Ammonite......" Xiao Qi blinked, she suddenly thought of something, "How many years has this pair of ammonites been here?" ”

The old man thought for a while, "There should be...... It's been 160 million years. ”

Xiao Qi and Ji Ran sighed at the same time.

160 million years later, the ammonites are still together.

"That's nice." Xiao Qi muttered.

"Come along," the old man smiled, "and they're all on their way to the next dungeon." ”

"Uncle, I would like to ask about the names, habits, places and ages of these things...... Do you keep it all in your head? Is there an album or something? ”

"No, these are ancient monsters, how can the names fall on paper," the old man laughed, "but someone has tried to do this before...... Anyway, something will happen. ”

Xiao Qi tilted his head, "What will happen?" ”

The old man smiled, did not answer, but walked away with his hands in his hands.

Xiao Qi pushed Ji Ran and quickly caught up with Feng Yishu and Ah Yu, but when she stepped into that room, she suddenly felt that her whole person was not good - the walls on all sides were nailed with dense insects, and there were many beautiful dragonflies and butterflies among them, but when these beautiful things were put together with the blue carapace, everything seemed dangerous and terrifying.

"Little Seven! Come and see this! Feng Yishu shouted at her.

Xiao Qi's scalp numb walked through the corridor, "...... Look at what, what's so nice about this. ”

"Haven't you seen a wild spirit! There's something here that makes you look at the wild spirit," Feng Yishu pointed to the insect in front of him, "Wild Spirit Firefly, have you heard of it?" ”

Xiao Qi shook his head, "A firefly? ”

"They look like they, but they're monsters, and they're pretty much the only insect demons that feed on wild spirits. Wild spirits that have been eaten by the Wild Spirit Firefly will still be bright, and will become visible to the naked eye, and will no longer hurt people's eyes. ”

Xiao Qi was stunned for a moment, "Ah! I've seen that! ”

"Huh?" Feng Yishu turned his head a little strangely, "This thing is very rare, where have you seen it?" ”

"It's not a wild spirit firefly, it's a wild spirit that has been processed and can be seen directly with the naked eye, I have seen it in my aunt's Six Runes Garden."

- Those little halos that imitate the stars in the dark stone chambers, once you see them, you will never forget them.

"Why is it rare?" Xiao Qi asked.

"Because the wild fireflies only appear in the spring and summer," the old man added, "they don't catch wild spirits just for food, but to find mates." ”

"Looking for a mate?"

"Yes, because the fireflies themselves do not emit light, but the females can temporarily gain the ability to glow by eating the spirits," the old man said softly, "Each female worm has its own rhythm of glowing, and the males will identify who is their own kind by these luminous frequencies - they will be attracted to females of a specific frequency. ”

"I see...... It's amazing," Xiao Qi nodded, she got closer, and pointed to a slightly larger wild spirit firefly nearby, "Is this also a wild spirit firefly?" Why is it so big? ”

The old man laughed, "That's indeed a wild spirit firefly, but it has a special name, it's a witch firefly." ”

The other three people felt new for a moment, and they all turned their heads to look at the old man.

"Generally speaking, females burrow into the ground to lay eggs immediately after mating, and they have cysts in their abdomen that are dedicated to storing slurry, which is enough to get them through the long egg-laying period."

"However, some females do not burrow into the soil immediately after finding their mates," the old man said slowly, "and they will continue to stop on the branches to catch wild spirits, and then change their luminous frequency until the other male is tricked into ...... by the light."

Feng Yishu was stunned for a moment, "...... Cheating marriage? ”

The old man shook his head, "It's not just a cheating marriage, when the male insect is deceived by this light and thinks that he has found the same kind, the female insect will bite off its head, eat its body, and eat the male insect cleanly, so the witch firefly is even bigger than other wild spirit fireflies." ”

The old man looked at the young people in front of him, "The world of monsters is very cruel. ”